Arduino Quiz

What is Arduino Uno?

• A microcontroller board used to build digital devices and interactive objects.

• A sensor used to measure temperature.

• A power supply.

• A display used to show text.

What is the purpose of a breadboard?

• Used to build electronic circuits without soldering.

• Used to generate sound alarms.

• Used to store program code.

• Used to connect power sockets.

What does pinMode(8, INPUT); mean?

• Sets pin 8 to input mode for reading sensor values.

• Sets pin 8 to output mode for controlling an LED.

• Reads the digital value of pin 8.

• Delays the program execution by 300 milliseconds.

What happens to the LED if temp == HIGH?

• The LED will turn on (indicating a darker environment).

• The LED will turn off (indicating a brighter environment).

• The LED will blink continuously.

• No change.

What is the role of delay(300);?

• Pauses the program for 300 milliseconds to avoid reading too frequently.

• Reads the digital value of pin 8.

• Sets the LED to HIGH.

• Initializes the serial monitor.

What does digitalWrite(LED_BUILTIN, HIGH); do?

• Turns on the built-in LED.

• Turns off the built-in LED.

• Reads the state of the built-in LED.

• Delays the program by 1000 milliseconds.

What does IoT mean?

• Internet of Toys.

• Internet of Things, referring to devices connected to the internet that can communicate and operate automatically.

• A network of only computers.

• Applications on mobile phones.

What is a simple example of an IoT device?

• A regular alarm clock.

• A smart bulb that can be turned on and off remotely via a mobile app.

• A handwritten notebook.

• A traditional TV remote.

How do IoT devices connect to the internet?

• Only through telephone lines.

• Through methods like Wi-Fi, wireless networks, or Bluetooth.

• Must be directly connected to a computer with wires.

• Work directly without connection.

In IoT, what is a sensor?

• A device used to make sounds.

• A tool that can detect temperature, light, or other things, making devices smarter.

• A memory card used to store photos.

• A component only used in gaming consoles.